package com.atguigu.facade;

public class TheaterLight {
    private static TheaterLight instance = new TheaterLight();
    public static TheaterLight getInstance(){
        return instance;
    }

    public void on(){
        System.out.println(" TheaterLight on ");
    }
    public void off(){
        System.out.println(" TheaterLight off ");
    }
    public void dim(){
        System.out.println(" TheaterLight dim.. ");
    }
    public void bright(){
        System.out.println(" TheaterLight bright.. ");
    }

}
